Unidentified Musical Objects and other sound experiments

Instruments

When I was young, I used to watch a series called The Wizard in which an inventor had lots of amazing gadgets (at least they seemed amazing then). One of those devices was a pair of drumsticks you could play anywhere and it would play drum sounds... Well this is now a dream come true thanks to FreeDrum.

Sławomir Zubrzycki, a polish pianist, built this instrument drawn and invented by Leonardo Da Vinci.
Although it looks like a piano, it sounds like a violin, as the strings are not struck, bowed. This video is an interview of Sławomir Zubrzycki, to understand how it works and sounds.

It's working seems to be similar to the harp wheel, as seen and heard in this other video.

I already knew about musical glasses, and how one could play music on crystal glasses filled with water. It's one of Christmas tradition at my wife's grand parents to play with the glasses during dinner.

Anyway, I just discovered that Benjamin Franklin invented a Glass Harmonica in 1791, using a turning axle on which he put severall bowls of varying size.